<!DOCTYPE html>
<html lang="en">
<head>
  <meta charset="UTF-8">
  <meta name="viewport" content="width=device-width, initial-scale=1.0">
  <title>Document</title>
  <style>
    .box{
      width: 300px;
      height: 300px;
      background-color: tomato;
      margin: 100px auto;
    }
  </style>
  <link rel="stylesheet" href="./animate.css">
</head>
<body>
  <div class="box animate__animated animate__bounce animate__infinite" ></div>
</body>
</html>